Add View Source API and make the feature available from context menu

[ChangeLog][QtWebEngineQML][QQuickWebEngineView] View Source feature is
now supported
[ChangeLog][QtWebEngineWidgets][QWebEnginePage] View Source feature is
now supported

Change-Id: Icc16da71fc6ec95880897fc9744dd8be8c004e00
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>

3 files changed, 36 insertions, 0 deletions

diff --git a/src/webengine/api/qquickwebengineview.cpp b/src/webengine/api/qquickwebengineview.cpp
index 983e8c30e..0170018e7 100644
--- a/src/webengine/api/qquickwebengineview.cpp
+++ b/src/webengine/api/qquickwebengineview.cpp
@@ -240,6 +240,10 @@ bool QQuickWebEngineViewPrivate::contextMenuRequested(const WebEngineContextMenu
         item = new MenuItemHandler(menu);
         QObject::connect(item, &MenuItemHandler::triggered, q, &QQuickWebEngineView::reload);
         ui()->addMenuItem(item, QQuickWebEngineView::tr("Reload"), QStringLiteral("view-refresh"));
+
+        item = new MenuItemHandler(menu);
+        QObject::connect(item, &MenuItemHandler::triggered, q, &QQuickWebEngineView::viewSource);
+        ui()->addMenuItem(item, QQuickWebEngineView::tr("View Page Source"), QStringLiteral("view-source"), q->canViewSource());
     } else {
         item = new MenuItemHandler(menu);
         QObject::connect(item, &MenuItemHandler::triggered, [q] { q->triggerWebAction(QQuickWebEngineView::Copy); });
@@ -1278,6 +1282,18 @@ void QQuickWebEngineView::replaceMisspelledWord(const QString &replacement)
     d->adapter->replaceMisspelling(replacement);
 }
 
+void QQuickWebEngineView::viewSource()
+{
+    Q_D(QQuickWebEngineView);
+    d->adapter->viewSource();
+}
+
+bool QQuickWebEngineView::canViewSource() const
+{
+    Q_D(const QQuickWebEngineView);
+    return d->adapter->canViewSource();
+}
+
 bool QQuickWebEngineView::isFullScreen() const
 {
     Q_D(const QQuickWebEngineView);
diff --git a/src/webengine/api/qquickwebengineview_p.h b/src/webengine/api/qquickwebengineview_p.h
index 367497da5..dc693a94c 100644
--- a/src/webengine/api/qquickwebengineview_p.h
+++ b/src/webengine/api/qquickwebengineview_p.h
@@ -119,6 +119,7 @@ class Q_WEBENGINE_PRIVATE_EXPORT QQuickWebEngineView : public QQuickItem {
     Q_PROPERTY(bool audioMuted READ isAudioMuted WRITE setAudioMuted NOTIFY audioMutedChanged FINAL REVISION 3)
     Q_PROPERTY(bool recentlyAudible READ recentlyAudible NOTIFY recentlyAudibleChanged FINAL REVISION 3)
     Q_PROPERTY(uint webChannelWorld READ webChannelWorld WRITE setWebChannelWorld NOTIFY webChannelWorldChanged REVISION 3)
+    Q_PROPERTY(bool canViewSource READ canViewSource FINAL REVISION 4)
 
 #ifdef ENABLE_QML_TESTSUPPORT_API
     Q_PROPERTY(QQuickWebEngineTestSupport *testSupport READ testSupport WRITE setTestSupport FINAL)
@@ -145,6 +146,7 @@ public:
     void setBackgroundColor(const QColor &color);
     QSizeF contentsSize() const;
     QPointF scrollPosition() const;
+    bool canViewSource() const;
 
     QQuickWebEngineViewExperimental *experimental() const;
 
@@ -473,6 +475,7 @@ public Q_SLOTS:
     Q_REVISION(3) void printToPdf(const QString &filePath, PrintedPageSizeId pageSizeId = PrintedPageSizeId::A4, PrintedPageOrientation orientation = PrintedPageOrientation::Portrait);
     Q_REVISION(3) void printToPdf(const QJSValue &callback, PrintedPageSizeId pageSizeId = PrintedPageSizeId::A4, PrintedPageOrientation orientation = PrintedPageOrientation::Portrait);
     Q_REVISION(4) void replaceMisspelledWord(const QString &replacement);
+    Q_REVISION(4) void viewSource();
 
 private Q_SLOTS:
     void lazyInitialize();
diff --git a/src/webengine/doc/src/webengineview.qdoc b/src/webengine/doc/src/webengineview.qdoc
index 0f83d0d23..83eadd563 100644
--- a/src/webengine/doc/src/webengineview.qdoc
+++ b/src/webengine/doc/src/webengineview.qdoc
@@ -1128,3 +1128,20 @@
     Also if the audio is paused, this signal is emitted with an approximate \b{2 second
     delay}, from the moment the audio is paused.
 */
+
+/*!
+    \qmlmethod void WebEngineView::viewSource()
+    \since QtWebEngine 1.4
+
+    Shows the source of the current page in a new tab.
+
+    \sa canViewSource
+*/
+
+/*!
+    \qmlproperty bool WebEngineView::canViewSource
+    \brief This property holds whether the source for the current page can be viewed.
+    \since QtWebEngine 1.4
+
+    \sa viewSource()
+*/